JPS5478184A - Frequency analytical apparatus - Google Patents
Frequency analytical apparatusInfo
- Publication number
- JPS5478184A JPS5478184A JP14529877A JP14529877A JPS5478184A JP S5478184 A JPS5478184 A JP S5478184A JP 14529877 A JP14529877 A JP 14529877A JP 14529877 A JP14529877 A JP 14529877A JP S5478184 A JPS5478184 A JP S5478184A
- Authority
- JP
- Japan
- Prior art keywords
- frequency divider
- frequency
- content
- clock
- counter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005259 measurement Methods 0.000 abstract 1
Landscapes
- Measuring Frequencies, Analyzing Spectra (AREA)
Abstract
PURPOSE: To shorten the time required for measurement, by providing a signal processing apparatus to deliver an output by converting the clock speed of digital signal through writing in and reading from a memory device.
CONSTITUTION: A frequency divider 52 comprises a presettable down-counter. First the content A of buffer register 51 is preset, and the clock pulses generated from a clock generator are counted down. Every time the content of the counter which composes the frequency divider 52 becomes zero, a pulse is outputted, and at the same time the content A from the buffer register 51 is preset again. Such operation is repeated by this frequency divider. Therefore, when the frequency of clock pulse of the imput of this frequency divider 52 is supposed to be f0, the output frequency of the frequency divider 52 will be F0/A.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14529877A JPS5478184A (en) | 1977-12-02 | 1977-12-02 | Frequency analytical apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14529877A JPS5478184A (en) | 1977-12-02 | 1977-12-02 | Frequency analytical apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5478184A true JPS5478184A (en) | 1979-06-22 |
Family
ID=15381900
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14529877A Pending JPS5478184A (en) | 1977-12-02 | 1977-12-02 | Frequency analytical apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5478184A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5694903A (en) * | 1979-12-27 | 1981-07-31 | Nippon Signal Co Ltd:The | Frequency discriminating circuit |
JP2014520260A (en) * | 2011-06-10 | 2014-08-21 | ローデ ウント シュワルツ ゲーエムベーハー ウント コー カーゲー | Measuring apparatus and measuring method |
-
1977
- 1977-12-02 JP JP14529877A patent/JPS5478184A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5694903A (en) * | 1979-12-27 | 1981-07-31 | Nippon Signal Co Ltd:The | Frequency discriminating circuit |
JP2014520260A (en) * | 2011-06-10 | 2014-08-21 | ローデ ウント シュワルツ ゲーエムベーハー ウント コー カーゲー | Measuring apparatus and measuring method |
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